JTEKT/Koyo DB matched pair · live catalog page 8
7902CDB FY
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7902CDB FY
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 15 mm
- Outside diameter D
- 28 mm
- Pair width B
- 14 mm
- Minimum corner radius r
- 0.3 mm
- Minimum corner radius r1
- 0.15 mm
- Dynamic load rating Cr
- 9.65 kN
- Static load rating C0r
- 5.3 kN
- Fatigue load limit Cu
- 0.21 kN
- Factor f0
- 14.5
- Grease limiting speed
- 31,000 rpm
- Published row text
- 7902CDB FY | 15 | 28 | 14 | 0.3 | 0.15 | 9.65 | 5.3 | 0.21 | 14.5 | 31000
Verification boundary
What still needs to match
Arrangement and contact angleConfirm DB arrangement, contact angle, precision, preload, and complete suffix.
Fits and geometryVerify shaft/housing seats, shoulders, fillets, spacers, and axial clamping.
DutyCheck combined radial/axial load, stiffness, speed, lubrication, temperature, and required life.
Current dataUse the linked JTEKT/Koyo calculation and CAD tools before ordering.
Related Koyo DB pairs
Same bore dimension
DB matched pair7202BDBD 35 mm · pair width 22 mmDB matched pair7202DBD 35 mm · pair width 22 mmDB matched pair7202CDBD 35 mm · pair width 22 mmDB matched pair7302DBD 42 mm · pair width 26 mmDB matched pair7002BDB FYD 32 mm · pair width 18 mmDB matched pair7002DB FYD 32 mm · pair width 18 mmDB matched pair7002CDB FYD 32 mm · pair width 18 mmDB matched pair7202BDB FYD 35 mm · pair width 22 mm